Four weeks of climate data: Southern Tropics Region #6

 The last slice of the Southern tropics is all in the Atlantic Ocean between South America and Africa.

One station reported enough to be noticed from 1955 to 2010. This is the island of Ascension.

Notice there are gaps in the record in the first era from 1955 to 1975. Even so, there is enough data to be used under my system.

This is a region much like the rest of the Southern tropics.

If there is one difference, it's Winter. The median from 1999 to 2010 is slightly lower than the median from 1955 to 1975. It's anyone's guess if this would still be true if the missing years in the 1950s and 1960s existed.
 

Here's the overall story.

Confidence of the region warming: 99.5%
Confidence of increasing rate: 89%
Change in median temperature from the 1955-1975 interval to the 1999-2010 interval: 0.37° C


The Southern Tropics have some variation, but the basic story is we are confident of the warming, not confident of an increasing rate and the difference in the median values from the first era to the last are all well below a degree C.


Tomorrow, we start out look at the last section of the globe, the Southern Temperate Zone, which has even less land mass than the Southern Tropics.